Question

Louis must ride a mechanical lift to place 20 boxes on a high store shelf.

. Louis weighs 140 pounds.
. There are x boxes that weigh 10 kilograms each and 20-x boxes that weigh 30 kilograms each.
. A kilogram is 2.2 pounds.

which expression shows the total weight, in pounds, that will be on the lift?

A.) 1,320 - 44x
B.) 1,460 - 44x
C.) 272 - 9.1x
D.) 412 - 9.1x​

Answer 1

It is B

Explanation:

You must add Louis's weight and the weights of the boxes in pounds, then you had to have simplified the expression. :D

Answer 2

Explanation:

so we have Louis who weighs 140 lbs

then we have x boxes that weigh 10 kg....or (2.2 * 10) = 22 lbs

and we have (20 - x) boxes that weigh 30 kg or (2.2 * 30) = 66 lbs

140 + 22x + 66(20 - x) =

140 + 22x + 1320 - 66x =

1460 - 44x <====